YouTube: Vaadin/NetBeans Webinar

The webinar is live on YouTube. Watch how Matti the Vaadin guy deletes almost my entire application and replaces it with Vaadin:

Or click here to get there: https://www.youtube.com/watch?v=3TompuzySD8

Here's a pic of the after party with Matti, my co-presenter:

And the after after party in a viking restaurant with Fredrik, Matti, and Sami:


Comments:

Hi Geertjan,

I watched the webinar, was very informative. Has given me a more reasons to look at vaadin more.

Thanks

David

Posted by David on April 04, 2014 at 04:00 AM PDT #

Hi Geertjan,

I followed the steps in Webimar and I keep on getting an error com.vaadin.server.ServerException java.lang.NullPointerException.

Im using Glassfish & MySQL

here's my persistence.xml

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
<persistence-unit name="com.openhris_OpenHris-ui_war_1.0-SNAPSHOTPU" transaction-type="JTA">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<!-- <jta-data-source>fnc_hris_db</jta-data-source> -->
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<class>com.openhris.entity.Employee</class>
<class>com.openhris.entity.EmployeeAddress</class>
<properties>
<!-- <property name="eclipselink.target-database" value="MySQL"/> -->
<property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver"/>
<property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/fnc_hris_db"/>
<property name="javax.persistence.jdbc.user" value="username"/>
<property name="javax.persistence.jdbc.password" value="password"/>
</properties>
</persistence-unit>
</persistence>

Posted by jet on February 11, 2015 at 01:21 AM PST #

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About

Geertjan Wielenga (@geertjanw) is a Principal Product Manager in the Oracle Developer Tools group living & working in Amsterdam. He is a Java technology enthusiast, evangelist, trainer, speaker, and writer. He blogs here daily.

The focus of this blog is mostly on NetBeans (a development tool primarily for Java programmers), with an occasional reference to NetBeans, and sometimes diverging to topics relating to NetBeans. And then there are days when NetBeans is mentioned, just for a change.

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